We took our C-Max into the dealer today to have the GPS system looked at and they concluded, rightly so, that a new GPSM was required. They didn't have one, as they are only obtained when a Repair Order calls for one, but another dealer allegedly had one but upon sending someone over there they discovered their inventory was wrong, they had none, so our Service Advisor immediately ordered one from Ford and it is suppose to be here Thursday. So, hopefully, Thursday or Friday we hope to have our GPS working properly, then all that will remain is the 3.5.1 update and another day spent at the dealer. I will post the outcome.